CN111011915B - Cigarette core column suitable for heating cigarettes and preparation method thereof - Google Patents
Cigarette core column suitable for heating cigarettes and preparation method thereof Download PDFInfo
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- CN111011915B CN111011915B CN202010009661.6A CN202010009661A CN111011915B CN 111011915 B CN111011915 B CN 111011915B CN 202010009661 A CN202010009661 A CN 202010009661A CN 111011915 B CN111011915 B CN 111011915B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
Abstract
The invention relates to the technical field of heating non-combustible cigarettes, in particular to a cigarette core column suitable for heating cigarettes and a preparation method thereof. The cigarette core column suitable for heating cigarettes comprises, by mass, 20-40 parts of tobacco powder, 5-10 parts of tobacco extract, 0.2-3 parts of essence and spice, 2-10 parts of smoke agent, 2-8 parts of adhesive and 2-5 parts of smoke-generating auxiliary agent; the fuming auxiliary agent is a metal-mesoporous material complex. According to the application, the porous framework which is not easy to collapse is constructed through the metal-mesoporous material complex, heat conduction and the load of essence, spice and nicotine are realized, the smoking rate and the fragrance release uniformity can be effectively improved, and the consistency of the sensory quality of the heated cigarette is improved.
Description
Technical Field
The invention relates to the technical field of heating non-combustible cigarettes, in particular to a cigarette core column suitable for heating cigarettes and a preparation method thereof.
Background
With the increasing concern of people on smoking and health problems and the increasing severity of the smoking control environment, the novel tobacco products, especially the heating cigarettes, are different in development due to the fact that harmful ingredients are greatly reduced and the smoking satisfaction similar to that of the traditional cigarettes can be obtained.
The design of the heating cigarette core material and the forming mode thereof is directly related to the smoking effect of tobacco, thereby being one of the key technologies in the design of the heating cigarette product. The existing heating cigarette has the defects of uneven heating and unstable smoking consistency. To solve this problem, domestic scientists have also conducted research and reported on the results of the research.
Patent application No. CN 105614945A discloses such tobacco column suitable for low temperature cigarette, it is formed by compressing through medicinal tablet press after tobacco granule, essence for cigarette, heat conduction component and binder mix, under the effect of tablet press, its tobacco column space collapses easily, porous structure loses efficacy easily to make its flue gas release rate and degree of consistency receive the influence.
The application document with the patent number of CN 105249518A discloses a porous tobacco material for a heating non-combustion type cigarette and a preparation method thereof, wherein tobacco powder, guar gum, a flame retardant and a dry distillation spice are mixed and then fed into a single-screw extruder to be continuously mixed, and CO is injected into the single-screw extruder at the same time2Foaming, extruding and forming, drying the extrudate, and cutting into filaments by a cutter to obtain the tobacco material for heating the non-combustion type cigarette, aiming at ensuring that the tobacco material has the characteristics of sufficient smoke generation amount and strong satisfaction under the heating non-combustion state, but has the problem of uneven heat conduction.
In addition, CN 110150763 a discloses a smoking segment with added sodium bicarbonate heat, when the smoking segment is heated, sodium bicarbonate decomposes, and a large amount of porous structures are generated inside, so that the air path of the smoke to be sucked is unobstructed. Patent CN 103750535 a proposes to mix tobacco powder, alginate, glycerin, etc. and then mold them to form a cylindrical tobacco block with holes. The hole structure of the tobacco block enables the heating element to go deep into the tobacco block, and the heating efficiency is effectively improved. However, these solutions have problems that the heat conduction effect is poor or/and the fragrance load is uneven, resulting in uneven fragrance release or/and the porous structure is liable to collapse and fail.
Disclosure of Invention
The invention aims to solve the problems and provides a cigarette core column suitable for heating cigarettes and a preparation method thereof.
The technical scheme for solving the problems is that the cigarette core column suitable for heating the cigarette comprises, by mass, 20-40 parts of tobacco powder, 5-10 parts of tobacco extract, 0.2-3 parts of essence and spice, 2-10 parts of a smoke agent, 2-8 parts of a binder and 2-5 parts of a smoke generation aid; the fuming auxiliary agent is a metal-mesoporous material complex.
Preferably, the metal-mesoporous material composite is prepared by calcining a hard template absorbed with a metal precursor, wherein the hard template comprises SiO2、TiO2And MCM-41, wherein the metal comprises one of Ca, Cu and CeOne or more of them.
Preferably, the calcination temperature is 280-320 ℃.
Preferably, the metal-mesoporous material composite is prepared by the following steps: adding the dried hard template into a metal nitrate solution, stirring, dipping, filtering and drying to obtain a primary precursor; putting the primary precursor into the residual mother liquor after impregnation, continuously impregnating, filtering and drying to obtain a secondary precursor; continuously putting the secondary precursor into the residual mother liquor after impregnation, impregnating, filtering and drying, repeating the steps until the mother liquor is completely absorbed, filtering and drying to obtain the precursor; and calcining the precursor to obtain the metal-mesoporous material complex.
Preferably, each dipping time is 40-55 h.
Preferably, the drying conditions of the hard template are as follows: drying for 6-10 h at 110-130 ℃.
Preferably, the drying step of the precursor is as follows: drying the mixture for 3-5 hours at 70-90 ℃, and drying the dried mixture for 3-5 hours at 110-130 ℃.
Preferably, the calcination time is 2.5-3.5 h.
Preferably, the particle size of the tobacco powder is 80-200 meshes.
Preferably, the tobacco powder can be one or a mixture of flue-cured tobacco, air-cured tobacco and sun-cured tobacco.
Preferably, the tobacco extract is prepared by extracting tobacco leaves with nicotine content of 2.2-2.3% by ethanol and performing chromatographic separation.
Preferably, the tobacco extract is extracted by: compounding tobacco raw materials with nicotine content of 2.2-2.3%; mixing the tobacco raw materials according to the proportion of 1: (12-18) adding the solid-liquid ratio into 75-80% ethanol, performing reflux extraction for 1.5-2.5 h, filtering, taking filtrate, and concentrating the filtrate in a water bath at 55-65 ℃ to obtain a tobacco extract; then, setting different solvent systems by a preparative high-speed counter-current chromatograph to separate the tobacco extract; determining the time of fraction peak; collecting effective active components by stages to obtain tobacco extract. The active components in the tobacco extract include tobacco flavor substances (benzyl alcohol, phytol, cetrimol, 3-methyl-2-butenal, benzaldehyde, solanone, megastigmatrienone, dihydroactinidiolide, methyl palmitate, ethyl palmitate, neophytadiene, pyridine, etc.) mainly containing alcohols, aldehydes, ketones, esters, hydrocarbons and heterocycles, and other bioactive substances such as alkaloids, solanesol, proteins, amino acids and saccharides. Providing the user with a sense of satisfaction equivalent to smoking a conventional cigarette.
Preferably, the smoking agent comprises one or more of glycerol, 1, 2-propanediol.
Preferably, the flavors and fragrances comprise one or more of beta-damascenone, 2,6, 6-trimethyl-2-cyclohexene-1, 4-dione, beta-ionone, furfural, triacetin, phenylacetaldehyde, benzyl alcohol, menthol, phenylacetic acid, dihydroactinidiolide, dimethyl succinate, indole, pyridine, 3-acetylpyridine, 3-ethylpyridine, 2-methylpyrazine, and plum extract.
Preferably, the binder comprises a mixture of one or more of hydroxypropyl methylcellulose, hydroxypropyl starch, corn modified starch, tamarind gum, propylene glycol alginate.
Another object of the present invention is to provide a method for preparing a stem suitable for heating a cigarette, comprising the steps of:
(1) mixing tobacco powder, tobacco extract, essence and spice, a smoke agent, a metal-mesoporous material complex smoking assistant and water according to parts by mass to obtain a suspension; (2) carrying out spray freeze drying treatment on the suspension to obtain a powdery product; (3) and mixing the powdery product with the adhesive, and extruding to reconstruct and mold the texture to obtain the cigarette core column.
Preferably, in the step (1), the weight of the tobacco powder accounts for 1-15% of the suspension.
Preferably, in the step (2), the temperature of spray freeze drying is-15 ℃ to-5 ℃, and the spray pressure is 2-5 Bar.
Preferably, the particle size of the powdery product is 10-100 μm.
Preferably, the extrusion texture reorganization comprises the steps of conveying, mixing, stirring, extruding and forming, wherein the materials are extruded through a circular die hole, and the diameter of the circular die hole can be adjusted between 16 mm and 25 mm.
The invention has the beneficial effects that:
1. the metal-mesoporous material complex is added as a smoke generating auxiliary agent, on one hand, the metal-mesoporous material complex has high temperature resistance and good heat conducting performance of a metal material, and is uniformly compounded in the cigarette core column, so that the heat transfer speed and the heat transfer uniformity of the cigarette which is not burnt during heating can be effectively improved, and the speed and the uniformity of smoke generated by the smoke generating agent are improved. On the other hand, the metal-mesoporous material complex has the characteristics of large specific surface area and strong adsorption capacity, and in the preparation process of the cigarette core column, a proper amount of essence, spice and tobacco extract is adsorbed, so that the essence, spice and nicotine can be slowly and continuously released along with smoke, and the consistency of the sensory quality of the heated cigarette is improved. In addition, in the application, in the preparation process of the metal-mesoporous material complex, the hard template is not completely removed at a lower calcining temperature, and the metal-mesoporous material complex with the residual hard template can construct a hard framework after being mixed with other materials, so that the collapse of the porous structure can be effectively prevented through the framework when the composite powder with obvious pores and loose structure is obtained by a spray freeze drying technology, and the smoke channel is smoother through the porous structure, thereby being beneficial to the release of smoke.
2. When the cigarette core column prepared by compounding and selecting the tobacco raw materials and the flavors and fragrances is used for heating cigarettes, the satisfaction is strong, and the smoke is stable and mellow.
3. The preparation process of the invention does not destroy the active ingredients in the tobacco powder, the tobacco extract and the flavors and fragrances thereof, does not cause adverse effects on the product quality, and the preparation method can meet the requirements of industrial production.
Detailed Description
The following are specific embodiments of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
A core column suitable for heating a cigarette, prepared by the steps of:
(1) according to the mass parts, 30 parts of tobacco powder, 7.5 parts of tobacco extract, 0.75 part of essence and spice, 6 parts of smoke agent, 3 parts of adhesive and 3 parts of metal-mesoporous material complex are prepared.
Wherein, the tobacco powder is prepared from the following components in percentage by mass: 2: 3, crushing the mixed raw materials of the flue-cured tobacco, the burley tobacco and the aromatic tobacco, and sieving the crushed raw materials with a 100-mesh sieve. The essence and the spice are respectively a mixture of 11% of beta-damascenone, 16% of 2,6, 6-trimethyl-2-cyclohexene-1, 4-diketone, 6% of beta-ionone, 14% of glyceryl triacetate, 8% of furfural, 10% of phenylacetaldehyde, 8% of benzyl alcohol, 8% of dihydroactinidiolide, 3% of indole, 10% of 3-acetylpyridine and 6% of plum extract by mass fraction. The smoke agent is glycerol. The adhesive is propylene glycol alginate.
The tobacco extract is extracted by the following steps: compounding tobacco raw materials with nicotine content of 2.25%; mixing the tobacco raw materials according to the proportion of 1: 15, adding the mixture into 78% ethanol, carrying out reflux extraction for 2 hours, filtering, taking the filtrate, and concentrating the filtrate by water bath at the temperature of 60 ℃ to obtain a tobacco extract; then, setting different solvent systems by a preparative high-speed counter-current chromatograph to separate the tobacco extract; determining the time of fraction peak; collecting effective active components by stages to obtain tobacco extract.
The metal-mesoporous material composite is prepared by the following steps: dissolving calcium nitrate in distilled water, adding SiO dried at 120 deg.C for 8 hr2Sealing with preservative film, stirring from time to time, and soaking for 48 h. Then, the mixed solution was vacuum filtered, and the filtrate was stored. Drying the filtered solid in an oven in two stages, drying at 80 deg.C for 4 hr, and drying at 120 deg.C for 4 hr. Adding the obtained dried solid into the residual filtrate after impregnation for secondary impregnation, and drying again. Repeating the steps until the filtrate is completely absorbed to obtain the precursor. Calcining the precursor in a muffle furnace at 300 ℃ for 3h to obtain CaO/SiO2And (3) placing the metal-mesoporous material composite into a dryer for later use.
Mixing the tobacco powder, the tobacco extract, the essence and the spice, the smoke agent and the metal-mesoporous material complex with water, and controlling the weight of the tobacco powder to be 10% of the suspension to obtain the suspension.
(2) And (3) placing the obtained suspension in a spray freeze dryer, continuously and uniformly mixing the suspension in a feeding bin by using a stirrer, selecting the atomization and freezing temperature of-10 ℃ and the atomization pressure of 3 Bar, and drying to obtain a powdery product.
(3) And mixing the powdery product with the adhesive, passing through a circular die hole with the aperture of 23mm, extruding, cutting into 45 mm, and drying to obtain the circular cigarette core column.
The resulting core rod was subjected to sensory quality evaluation using a heated cigarette smoking set, and the results are shown in table 1 below.
Example 2
A core column suitable for heating a cigarette, prepared by the steps of:
(1) according to the mass parts, 20 parts of tobacco powder, 5 parts of tobacco extract, 0.2 part of essence and flavor, 2 parts of smoke agent, 2 parts of adhesive and 2 parts of metal-mesoporous material complex are prepared.
Wherein the tobacco powder is obtained by crushing the mixed raw materials of flue-cured tobacco and aromatic tobacco in equal mass ratio and sieving the crushed raw materials with a 80-mesh sieve. The essence and the spice are respectively a mixture of 10% of beta-damascenone, 6% of beta-ionone, 14% of glyceryl triacetate, 8% of furfural, 10% of phenylacetaldehyde, 26% of menthol, 8% of dihydroactinidiolide, 10% of 3-acetylpyridine and 8% of plum extract in percentage by mass. The smoke agent is a mixture of 80% of glycerin and 20% of propylene glycol in mass percentage respectively. The adhesive is a mixture of 50% of hydroxypropyl starch and 50% of corn modified starch in mass fraction.
The tobacco extract is extracted by the following steps: compounding tobacco raw materials with nicotine content of 2.2%; mixing the tobacco raw materials according to the proportion of 1: adding the solid-to-liquid ratio of 12 into 75% ethanol, reflux extracting for 1.5h, filtering, collecting the filtrate, and concentrating the filtrate in water bath at 55 deg.C to obtain tobacco extract; then, setting different solvent systems by a preparative high-speed counter-current chromatograph to separate the tobacco extract; determining the time of fraction peak; collecting effective active components by stages to obtain tobacco extract.
The metal-mesoporous material composite is prepared by the following steps: dissolving copper nitrate in distilled water, adding MCM-41 which is dried for 6 hours at 110 ℃ after the copper nitrate is dissolved, sealing the preservative film, stirring from time to time, and soaking for 40 hours. Then, the mixed solution was vacuum filtered, and the filtrate was stored. And (3) putting the filtered solid into an oven for drying, and drying at 70 ℃ for 3h and then at 110 ℃ for 3h in two stages. Adding the obtained dried solid into the residual filtrate after impregnation for secondary impregnation, and drying again. Repeating the steps until the filtrate is completely absorbed to obtain the precursor. And placing the precursor in a muffle furnace to calcine at 280 ℃ for 2.5h to obtain a CuO/MCM-41 metal-mesoporous material complex, and placing the complex in a dryer for later use.
Mixing the tobacco powder, the tobacco extract, the essence and the spice, the smoke agent and the metal-mesoporous material complex with water, and controlling the weight of the tobacco powder to be 1% of the suspension to obtain the suspension.
(2) And (3) placing the obtained suspension in a spray freeze dryer, continuously and uniformly mixing the suspension in a feeding bin by using a stirrer, selecting the atomization and freezing temperature of-15 ℃ and the atomization pressure of 2 Bar, and drying to obtain a powdery product.
(3) And mixing the powdery product with the adhesive, passing through a circular die hole with the aperture of 16 mm, extruding, cutting into 45 mm, and drying to obtain the circular cigarette core column.
The resulting core rod was subjected to sensory quality evaluation using the heated cigarette smoking set of example 1, and the results are shown in table 1 below.
Example 3
A core column suitable for heating a cigarette, prepared by the steps of:
(1) according to the mass parts, 40 parts of tobacco powder, 10 parts of tobacco extract, 3 parts of essence and spice, 10 parts of smoke agent, 8 parts of adhesive and 5 parts of metal-mesoporous material complex are prepared.
Wherein the tobacco powder is obtained by crushing flue-cured tobacco raw materials and sieving the crushed flue-cured tobacco raw materials with a 200-mesh sieve. The essence and flavor compound in example 1 is selected as the essence and flavor. The smoke agent is 1, 2-propylene glycol. The adhesive is tamarind gum.
The tobacco extract is extracted by the following steps: compounding tobacco raw materials with nicotine content of 2.3%; mixing the tobacco raw materials according to the proportion of 1: adding 18 solid-to-liquid ratio into 80% ethanol, reflux extracting for 2.5 hr, filtering, collecting filtrate, and concentrating the filtrate in water bath at 65 deg.C to obtain tobacco extractive solution; then, setting different solvent systems by a preparative high-speed counter-current chromatograph to separate the tobacco extract; determining the time of fraction peak; collecting effective active components by stages to obtain tobacco extract.
The metal-mesoporous material composite is prepared by the following steps: dissolving cerous nitrate in distilled water, adding TiO dried at 130 deg.C for 10 hr2And sealing the opening of the preservative film, stirring from time to time, and soaking for 55 hours. Then, the mixed solution was vacuum filtered, and the filtrate was stored. And (3) putting the filtered solid into an oven for drying, and drying at 90 ℃ for 5h and then at 130 ℃ for 5h in two stages. Adding the obtained dried solid into the residual filtrate after impregnation for secondary impregnation, and drying again. Repeating the steps until the filtrate is completely absorbed to obtain the precursor. Calcining the precursor in a muffle furnace at 320 ℃ for 3.5h to obtain CeO/TiO2And (3) placing the metal-mesoporous material composite into a dryer for later use.
Mixing the tobacco powder, the tobacco extract, the essence and the spice, the smoke agent and the metal-mesoporous material complex with water, and controlling the weight of the tobacco powder to be 15% of the suspension to obtain the suspension.
(2) And (3) placing the obtained suspension in a spray freeze dryer, continuously and uniformly mixing the suspension in a feeding bin by using a stirrer, selecting the atomization and freezing temperature of-5 ℃ and the atomization pressure of 5 Bar, and drying to obtain a powdery product.
(3) And mixing the powdery product with the adhesive, passing through a circular die hole with the aperture of 25 mm, extruding, cutting into 45 mm, and drying to obtain the circular cigarette core column.
The resulting core rod was subjected to sensory quality evaluation using the heated cigarette smoking set of example 1, and the results are shown in table 1 below.
Comparative example 1
The tobacco stem column in the comparative example is prepared by the following steps:
(1) according to the mass parts, 30 parts of tobacco powder, 7.5 parts of tobacco extract, 0.75 part of essence and spice, 6 parts of smoke agent and 3 parts of adhesive are prepared.
Wherein, the tobacco powder, the tobacco extract, the essence and the spice, the smoke agent and the adhesive are all selected from the raw materials in the embodiment 1.
(2) And uniformly mixing the tobacco powder, the tobacco extract, the essence and the spice and the smoke agent, drying in an oven and crushing to obtain a powdery product.
(3) And mixing the powdery product with the adhesive, passing through a circular die hole with the aperture of 23mm, extruding, cutting into 45 mm, and drying to obtain the circular cigarette core column.
The resulting core rod was subjected to sensory quality evaluation using the heated cigarette smoking set of example 1, and the results are shown in table 1 below.
Table 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. A tobacco core column suitable for heating cigarettes is characterized in that: the tobacco powder comprises, by mass, 20-40 parts of tobacco powder, 5-10 parts of tobacco extract, 0.2-3 parts of essence and spice, 2-10 parts of smoke agent, 2-8 parts of adhesive and 2-5 parts of smoke generation auxiliary agent; the fuming auxiliary agent is a metal-mesoporous material complex; the metal-mesoporous material composite is prepared by calcining a hard template absorbed with a metal precursor, wherein the hard template comprises SiO2、TiO2And one or more of MCM-41, wherein the metal comprises one or more of Ca, Cu and Ce, and the calcining temperature is 280-320 ℃; the metal-mesoporous material composite is prepared by the following steps: adding the dried hard template into a metal nitrate solution, stirring, dipping, filtering and drying to obtain a primary precursor; putting a primary precursor on the containerContinuously dipping the residual mother liquor after dipping, and then filtering and drying to obtain a secondary precursor; continuously putting the secondary precursor into the residual mother liquor after impregnation, impregnating, filtering and drying, repeating the steps until the mother liquor is completely absorbed, filtering and drying to obtain the precursor; calcining the precursor to obtain a metal-mesoporous material complex;
the preparation method of the cigarette stem comprises the following steps:
(1) mixing tobacco powder, tobacco extract, essence and spice, a smoke agent, a metal-mesoporous material complex and water according to parts by mass to obtain a suspension;
(2) carrying out spray freeze drying treatment on the suspension to obtain a powdery product;
(3) and mixing the powdery product with the adhesive, and extruding to reconstruct and mold the texture to obtain the cigarette core column.
2. A core rod suitable for use in heating a cigarette according to claim 1, wherein: the tobacco extract is prepared by extracting tobacco leaves with nicotine content of 2.2-2.3% by ethanol and carrying out chromatographic separation.
3. A core rod suitable for use in heating a cigarette according to claim 1, wherein: the smoke agent comprises one or more of glycerol and 1, 2-propylene glycol.
4. A core rod suitable for use in heating a cigarette according to claim 1, wherein: the essence and flavor comprise one or more of beta-damascenone, 2,6, 6-trimethyl-2-cyclohexene-1, 4-dione, beta-ionone, furfural, glyceryl triacetate, phenylacetaldehyde, benzyl alcohol, menthol, phenylacetic acid, dihydroactinidiolide, dimethyl succinate, indole, pyridine, 3-acetylpyridine, 3-ethylpyridine, 2-methylpyrazine and plum extract.
5. A core rod suitable for use in heating a cigarette according to claim 1, wherein: the adhesive comprises one or more of hydroxypropyl methylcellulose, hydroxypropyl starch, corn modified starch, tamarind gum and propylene glycol alginate.
6. The tobacco plug column of claim 1, wherein: in the step (1), the weight of the tobacco powder accounts for 1-15% of the suspension.
7. The tobacco plug column of claim 1, wherein: in the step (2), the temperature of spray freeze drying is-15 to-5 ℃, and the spray pressure is 2 to 5 Bar.
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| CN113349430A (en) * | 2021-07-14 | 2021-09-07 | 中国烟草总公司郑州烟草研究院 | Heating atomization product and atomization body |
| CN113349431A (en) * | 2021-07-14 | 2021-09-07 | 中国烟草总公司郑州烟草研究院 | Heating atomization body for single-port suction and application mode |
| CN114209085B (en) * | 2021-12-19 | 2022-12-13 | 云南恒罡科技有限公司 | Tobacco extract, preparation method and application thereof, and low-temperature heating non-combustible product |
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| CN106136305A (en) * | 2016-07-26 | 2016-11-23 | 上海烟草集团有限责任公司 | A kind of heating tobacco product and preparation method thereof |
| CN109419043A (en) * | 2017-09-04 | 2019-03-05 | 湖南中烟工业有限责任公司 | It is a kind of for heating the sucked material for the tobacco product that do not burn |
| CN107616540A (en) * | 2017-10-13 | 2018-01-23 | 上海烟草集团有限责任公司 | A kind of smoking article and its production and use |
| CN108741206A (en) * | 2018-06-08 | 2018-11-06 | 湖北中烟工业有限责任公司 | The low temperature cigarette and preparation method of loose integrated tobacco segment with high thermal conductivity |
| CN109938399A (en) * | 2019-03-25 | 2019-06-28 | 杭州森翼科技有限公司 | A kind of low temperature does not burn cigarette tobacco tar carrier |
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| CN111011915A (en) | 2020-04-17 |
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